Difference between revisions of "CB-68LP Pinout"

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== Differential Channels ==
 
== Differential Channels ==
−
When the DAQ card is reading voltages in differential mode, two voltage measurements are required to actually measure a voltage difference.  For the CB-68LP in conjunction with the PCI 6014e card, each differential input channel uses two lines - the line that is the same number as the channel is the + terminal and the line that is 8 higher than the channel is the - terminal.  For example, taking a voltage on differential channel 4 would mean calculating the voltage difference between ACH4 on Line 28 and ACH12 on Line 61.  The chart below shows the same map as above, but is labeled in terms of the positive and negative channels for differential mode:
+
When the DAQ card is reading voltages in differential mode, two voltage measurements are required to actually measure a voltage difference.  For the CB-68LP in conjunction with either the PCI 6014e or 6221 card, each differential input channel uses two lines - the line that is the same number as the channel is the + terminal and the line that is 8 higher than the channel is the - terminal.  For example, taking a voltage on differential channel 4 would mean calculating the voltage difference between ACH4 on Line 28 and ACH12 on Line 61.  The chart below shows the analog input channels but is labeled in terms of the positive and negative channels for differential mode:
 
<center>
 
<center>
 
{| border="1"
 
{| border="1"
−
|width="20%"| 68 '''Channel 0 +''' || width="20%"|61 '''Channel 4 -''' || width="20%"|15 DGND || width="20%"|08 +5V || width="20%"|01 FREQ_OUT
+
|width="130px"| 68 '''Channel 0 +''' || width="130px"|61 '''Channel 4 -''' || width="130px"|15 || width="130px"|08 || width="130px"|01  
 
|-
 
|-
−
| 34 '''Channel 0 -''' || 27 AIGND            || 49 DIO2    || 42 GPCTR1_SRC || 35 DGND
+
| 34 '''Channel 0 -''' || 27             || 49     || 42 || 35  
 
|-
 
|-
−
| 67 AIGND            || 60 '''Channel 5 +''' || 16 DIO6    || 9 DGND        ||2 GPCTR0_OUT
+
| 67             || 60 '''Channel 5 +''' || 16     || 9         ||2  
 
|-
 
|-
−
| 33 '''Channel 1 +''' || 26 '''Channel 5 -''' || 50 DGND      || 43 CONVERT  || 36 DGND
+
| 33 '''Channel 1 +''' || 26 '''Channel 5 -''' || 50       || 43   || 36  
 
|-
 
|-
−
| 66 '''Channel 1 -''' || 59 AIGND            || 17 DIO1    || 10 TRIG2      || 3 GPCTR0_GATE
+
| 66 '''Channel 1 -''' || 59             || 17     || 10       || 3  
 
|-
 
|-
−
| 32 AIGND            || 25 '''Channel 6 +''' || 51 DIO5    || 44 DGND      || 37  GPCTR0_SRC
+
| 32             || 25 '''Channel 6 +''' || 51     || 44       || 37   
 
|-
 
|-
−
| 65 '''Channel 2 +''' || 58 '''Channel 6 -''' || 18 DGND    || 11 TRIG1      || 4 DGND
+
| 65 '''Channel 2 +''' || 58 '''Channel 6 -''' || 18     || 11       || 4  
 
|-
 
|-
−
| 31 '''Channel 2 -''' || 24 AIGND            || 52 DIO0    || 45 EXTSTROBE  || 38 STARTSCAN
+
| 31 '''Channel 2 -''' || 24             || 52     || 45   || 38  
 
|-
 
|-
−
| 64 AIGND            || 57 '''Channel 7 +''' || 19 DIO4    || 12 DGND      || 5 WFTRIG
+
| 64             || 57 '''Channel 7 +''' || 19     || 12       || 5  
 
|-
 
|-
−
| 30 '''Channel 3 +''' || 23 '''Channel 7 -''' || 53 DGND    || 46 SCANCLK    || 39 DGND
+
| 30 '''Channel 3 +''' || 23 '''Channel 7 -''' || 53     || 46     || 39  
 
|-
 
|-
−
| 63 '''Channel 3 -''' || 56 AIGND            || 20 RESERVED || 13 DGND      || 6 UPDATE
+
| 63 '''Channel 3 -''' || 56             || 20 || 13       || 6  
 
|-
 
|-
−
| 29 AIGND            || 22 DAC0OUT          || 54 AOGND    || 47 DIO3      || 40 GPCTR1_OUT
+
| 29             || 22           || 54     || 47       || 40  
 
|-
 
|-
−
| 62 AISENSE || 55 AOGND || NA NA || 14 +5V || 7 DGND
+
| 62 || 55 || NA || 14 || 7  
 
|-
 
|-
−
| 28 '''Channel 4 +''' || 21 DAC1OUT || NA NA || 48 DIO7 || 41 GPCTR1_GATE
+
| 28 '''Channel 4 +''' || 21 || NA || 48 || 41  
 
|}
 
|}
 
</center>
 
</center>

Revision as of 20:07, 19 September 2010

NI CB-68LP

The National Instruments CB-68LP connection block allows for simple connections to NI data acquisition cards through a ribbon cable. The CB-68LP in particular has screw-operated window connections that allow for quick connections to wires.

Mapping

The following chart lists the different connections as laid out on the National Instruments CB-68LP connection block when used in conjunction with the National Instruments PCI 6014e or 6221 Data Acquisition Card. The list under the table describes the most commonly used channels.

The most commonly used channels are:

  • ACH# - analog input channel number #
    • Note, in differential mode, ACH0-ACH7 measure the + terminal voltage while ACH8-ACH15 measure the - terminal voltage for channels 0-7, respectively.
    • Each voltage is measured with respect to AIGND
  • DAC#OUT - analog output channel number #
    • Each voltage is set relative to AOGND
  • DIO# - digital input/output (I/O) channel number # (6014e only)
    • Each voltage is measured or set relative to DGND
  • DIO#P@ - digital input/output (I/O) channel number # on port @ (6221 only)
    • Each voltage is measured or set relative to DGND
  • AIGND - ground (0 V) for the analog input channels
  • AOGND - ground (0 V) for the analog output channels
  • DGND - ground (0 V) for the digital I/O channels

Items in bold are the same for both cards; items in bold italics are functionally the same for both cards: Port 0 Digital I/O on the 6221 works the same as the Digital I/O on the 6014e. Each port can be configured as input or output - the individual channels in a port must all do the same thing. Note that the main places the cards differ is that the 6221 has a total of 24 DIO channels split among three ports while the 6014e only has 8 channels tied to a single port.


PCI 6014e

68 ACH0 61 ACH12 15 DGND 08 +5V 01 FREQ_OUT
34 ACH8 27 AIGND 49 DIO2 42 GPCTR1_SRC 35 DGND
67 AIGND 60 ACH5 16 DIO6 9 DGND 2 GPCTR0_OUT
33 ACH1 26 ACH13 50 DGND 43 CONVERT 36 DGND
66 ACH9 59 AIGND 17 DIO1 10 TRIG2 3 GPCTR0_GATE
32 AIGND 25 ACH6 51 DIO5 44 DGND 37 GPCTR0_SRC
65 ACH2 58 ACH14 18 DGND 11 TRIG1 4 DGND
31 ACH10 24 AIGND 52 DIO0 45 EXTSTROBE 38 STARTSCAN
64 AIGND 57 ACH7 19 DIO4 12 DGND 5 WFTRIG
30 ACH3 23 ACH15 53 DGND 46 SCANCLK 39 DGND
63 ACH11 56 AIGND 20 RESERVED 13 DGND 6 UPDATE
29 AIGND 22 DAC0OUT 54 AOGND 47 DIO3 40 GPCTR1_OUT
62 AISENSE 55 AOGND NA NA 14 +5V 7 DGND
28 ACH4 21 DAC1OUT NA NA 48 DIO7 41 GPCTR1_GATE

PCI 6221

68 ACH0 61 ACH12 15 DGND 08 +5V 01 DIO6P2
34 ACH8 27 AIGND 49 DIO2P0 42 DIO3P1 35 DGND
67 AIGND 60 ACH5 16 DIO6P0 9 DGND 2 DIO4P2
33 ACH1 26 ACH13 50 DGND 43 DIO2P1 36 DGND
66 ACH9 59 AIGND 17 DIO1P0 10 DIO1P1 3 DIO1P2
32 AIGND 25 ACH6 51 DIO5P0 44 DGND 37 DIO0P2
65 ACH2 58 ACH14 18 DGND 11 DIO0P1 4 DGND
31 ACH10 24 AIGND 52 DIO0P0 45 DIO2P2 38 DIO7P1
64 AIGND 57 ACH7 19 DIO4P0 12 DGND 5 DIO6P1
30 ACH3 23 ACH15 53 DGND 46 DIO3P2 39 DIO7P2
63 ACH11 56 AIGND 20 RESERVED 13 DGND 6 DIO5P1
29 AIGND 22 DAC0OUT 54 AOGND 47 DIO3P0 40 DIO5P2
62 AISENSE 55 AOGND NA NA 14 +5V 7 DGND
28 ACH4 21 DAC1OUT NA NA 48 DIO7P0 41 DIO4P1

Differential Channels

When the DAQ card is reading voltages in differential mode, two voltage measurements are required to actually measure a voltage difference. For the CB-68LP in conjunction with either the PCI 6014e or 6221 card, each differential input channel uses two lines - the line that is the same number as the channel is the + terminal and the line that is 8 higher than the channel is the - terminal. For example, taking a voltage on differential channel 4 would mean calculating the voltage difference between ACH4 on Line 28 and ACH12 on Line 61. The chart below shows the analog input channels but is labeled in terms of the positive and negative channels for differential mode:

68 Channel 0 + 61 Channel 4 - 15 08 01
34 Channel 0 - 27 49 42 35
67 60 Channel 5 + 16 9 2
33 Channel 1 + 26 Channel 5 - 50 43 36
66 Channel 1 - 59 17 10 3
32 25 Channel 6 + 51 44 37
65 Channel 2 + 58 Channel 6 - 18 11 4
31 Channel 2 - 24 52 45 38
64 57 Channel 7 + 19 12 5
30 Channel 3 + 23 Channel 7 - 53 46 39
63 Channel 3 - 56 20 13 6
29 22 54 47 40
62 55 NA 14 7
28 Channel 4 + 21 NA 48 41

Notice that, for the most part, pairs are right next to each other. The one exception is where Channel 4 is split between the first and second columns.

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